Back in 2005, we said:

...I’ve gotten behind the wheel of more than a dozen prototype FCVs, and almost without exception, the most notable first impression was the whine of the air pumps used to feed the fuel-cell stack. Imagine standing about five feet away from an air-raid siren and you’ll get the idea. This time, the most notable sound was silence. Not even a little peep. Just a pause after turning the key, while the FCX’s electronic control system went through self-check mode. Several seconds later... Read More